CHAMBERLAIN model 248730 residential opener is a 1/2hp chain/cable drive. It is part of the value. This garage door opener has an ac motor on 110vac. A battery backup is not available. The remotes are rolling code on 315. The rail is style is Split Square.
The warranty on the garage door opener is Lifetime on the motor and 1 year on the remaining opener parts from CHAMBERLAIN.
The model 248730 is discontinued.
CHAMBERLAIN model 248730 residential opener owners manual and instructions in PDF format at NO CHARGE!
VIEW / DOWNLOAD by clicking HERE
chamberlain_248730_om.pdf
(4.20 MB in English) This requires Acrobat 10 or higher